如何快速验证电子邮件地址?
有谁知道如何在Swift中验证电子邮件地址?我发现此代码: - (BOOL) validEmail:(NSString*) emailString { if([emailString length]==0){ return NO; } NSString *regExPattern = @"[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,4}"; NSRegularExpression *regEx = [[NSRegularExpression alloc] initWithPattern:regExPattern options:NSRegularExpressionCaseInsensitive error:nil]; NSUInteger regExMatches = [regEx numberOfMatchesInString:emailString options:0 range:NSMakeRange(0, [emailString length])]; NSLog(@"%i", regExMatches); if (regExMatches == 0) { return NO; } else { return YES; } } 但我无法将其翻译为Swift。